That's great that she's interested in biology. I'd like to gently suggest that if she "isn't very enthusiastic about computers or technology", you should instead try to nurture her demonstrated interest in art, biology, and other science.
I know absolutely nothing about art, except that I apparently have no taste. So I'll refrain from making any suggestions on art books.
TL;DR: Skip down to the third section for the "technical book" suggestion.
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(1)
Here are some suggestions of books on general science, biology, and chemistry (in no particular order, these are some of the first ones that come to my mind):
"The Structure of Scientific Revolutions" By Thomas S. Kuhn
"The Diversity of Life" By Edward O. Wilson
"The Beak of the Finch: A Story of Evolution in Our Time" by Jonathan Weiner
"Hen's Teeth and Horse's Toes: Further Reflections in Natural History" by Stephen Jay Gould
"Life on a Young Planet" By Andrew H. Knoll
"Galápagos" By Kurt Vonnegut (Fiction, but related) (I loved this book, but it's not for everyone I suppose. A couple of my friends didn't like it.)
"Napoleon's Buttons" By Penny Le Couteur and Jay Burreson
"The Lives of a Cell: Notes of a Biology Watcher" By Lewis Thomas
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(2)
If she's interested in learning a lot about cellular biology in beautifully exhaustive detail, buy her this textbook:
"Molecular Biology of the Cell" By Bruce Alberts, Paul Walter, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts
This book is huge. And it is wonderful.
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---Read this suggestion if my other suggestions aren't good---
(3)
So you want a technical book? And she's interested in biology?
Buy her a copy of:
"The Principles of Biomedical Informatics" By Ira J. Kalet
This textbook is incredible. It teaches you some fundamentals of many different flavors of bioinformatics. (Different flavors, because, as the author acknowledges, bioinformatics can mean many things.) You can learn how to work with amino acid sequences, protein modeling, medical imaging, probabilistic biomedical models, and more!
Since you have SICP and LoL on your bookshelf already, you might love the next part. The entire textbook is a cleverly accessible primer on how to build applications with Common Lisp. Whether you're a greybeard Lisp hacker or a repl-noob, you'll like this book if you are interested in learning about bioinformatics.
I've had the first edition for quite some time. Recently, I think in the past few months, a second edition was released. Someone gifted me the 2nd ed, :) but I haven't really compared the two.
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I was going to suggest Gödel, Escher, Bach when you mentioned she was interested in art, and were hoping to find a technical book for her. Then I saw that you already had tried that one. I'm going to leave the suggestion anyway because these types of threads are wonderful for finding great books.